Question

1. what would be a correct unit of measurement for velocity?

north
meters / second
hours
meters/second north

Explanation:

Velocity is a vector quantity that measures the rate of change of an object's position. It is defined as displacement per unit time. The SI - derived unit for velocity is meters per second. Direction can be added to specify the vector nature, but the base unit is meters per second. "North" is a direction only, "hours" is a unit of time, and "meters/second North" is a velocity with direction but the base unit part is meters per second.

Answer:

B. Meters / second